-er -ey bbb bbe bbi bbm bbo bbr bby be- beb bee bei bem beo ber bey bi- bib bie bii bim bio bir biy bmb bme bmi bmm bmo bmr bob boe boi bom boo bor boy brb bre bri brm bro brr bry by- bye byi bym byo byr ebb ebe ebi ebm ebo ebr eby eeb eee eem eeo eer eey eib eie eii eim eio eir em- emb eme emi emm emo emr eo- eob eoe eoi eom eoo eor erb ere eri erm ero err ery eye eym eyo eyr ibb ibe ibi ibm ibo ibr iby ie- iee iei iem ier iey iib iie iii iim iio iir im- imb ime imi imm imo imy io- iob ioe ioi iom ioo ior ir- irb ire iri irm iro irr iry iye iym iyo iyr iyy m-o m-r mbb mbe mbi mbm mbo mbr meb mee mei mem meo mer mey mi- mib mie mii mim mio mir miy mmb mme mmi mmm mmo mmr mob moe moi mom moo mor moy mrb mre mri mrm mro mrr mry my- myb mye mym myo myr o-i ob- obb obe obi obm obo obr oby oeb oee oei oem oeo oer oey oib oie oii oim oio oir om- omb ome omi omm omo omr omy oo- oob ooi oom ooo oor or- orb ore ori orm oro orr ory oye oyi oyo rbb rbe rbi rbm rbo rbr re- reb ree rei rem reo rer rey rib rie rii rim rio rir riy rmb rme rmi rmm rmo rmr rob roe roi rom roo ror roy rrb rri rrm rrr ry- rye rym ryo ryr ryy ybe ybi ybm ybr yby yeb yee yei yem yeo yer yey yie yii yim yio yir yme ymi ymm ymo yob yoe yoi yom yoo yor yoy yre yro yyb yye yyy